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3 years ago

What is the value of y? 3 4 5 6

Mathematics

2 answers:

Burka [1]3 years ago

5 0

For a rectangle, the two verticle sides should be congruent (of the same length)

2y+4=10

Subtract 4 from both sides
2y=6

Divide both sides by 2
y=3

Final answer: 3

FrozenT [24]3 years ago

4 0

The value of y is 3.!

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=============================================

Work Shown:

(2a^2+b)(3a-3b)

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a. First five terms: 9,13,17,21,25

b. Sum of first 25 terms = 1425

c. The given sequence is an arithmetic sequence because the common difference between two consecutive terms is same.

Further explanation:

Given

Formula of sequence

$a_n=4n+5$

<u>1. First 5 terms:</u>

For first 5 terms, we have to put n=1,2,...5,

So,

$For\ n=1\\a_1=4(1)+5\\=4+5\\=9\\For\ n=2\\a_2=4(2)+5\\=8+5\\=13\\For n=3\\a_3=4(3)+5\\=12+5\\=17\\For\ n=4\\a_4= 4(4)+5\\=16+5\\=21\\For\ n=5\\a_5=4(5)+5\\=20+5\\=25\\First\ 5\ terms\ are: 9,13,17,21,25$